Simrad EM-3000 Multibeam Bathymetry Grid, Taema Bank, American Samoa

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: Brian Donahue, Univ. of S. Florida
      Originator: Dawn Wright Oregon St.
      Publication_Date: 20010805
      Title: Simrad EM-3000 Multibeam Bathymetry Grid, Taema Bank, 
American Samoa
      Edition: 1
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: Tutuila, American Samoa
        Publisher: Fagatele Bay National Marine Sanctuary Office
      Other_Citation_Details:
      Online_Linkage: HTTP://dusk.geo.orst.edu/djl/samoa
      Larger_Work_Citation:
        Citation_Information:
          Originator: NOAA National Ocean Service (NOS) Special Projects
          Publication_Date: same as above
          Title: same as above
          Publication_Information:
            Publication_Place: same as above
            Publisher: same as above
          Online_Linkage: same as above
  Description:
    Abstract:
      This is a 1-m bathymetric grid of high-resolution, shallow
      water multibeam echo-soundings gathered by the Kongsberg
      Simrad EM-3000 system on a boat owned by the America Samoa
      Government (ASG), Dept. of Marine & Wildlife Resources
      (DMWR). Simrad EM-3000 is a 300 kHz system that fans out up
      to 121 beams at a 130 deg. angle, yielding swaths that are
      up to 4 times the water depth. The system can capture
      depths the 3-150 m range at survey speeds of 3-12 knots.
      With differential GPS, the system is capable of centimeter
      resolution with an accuracy of 10-15 cm. Grid size spacing
      may be 30 cm to 15 m for depths in the 3-150 m range.
      Xyz data from cleaned, tide-corrected soundings were
      gridded in MbSystem and then converted to an ArcInfo grid
      with ArcGMT. Grid spacing is 1-m, accuracy is ~24 m,
      coordinates decimal degrees, WGS84 datum. Differential
      corrections not applied.
    Purpose:
      This grid is a base layer for the purposes of visual
      overlay and comparison
      with other data sets in the Fagatele National Marine
      Sanctuary and subsequent spatial analyses
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 20010510
        Ending_Date: 20010520
    Currentness_Reference: publication date
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -170.676
      East_Bounding_Coordinate: -170.649
      North_Bounding_Coordinate: -14.307
      South_Bounding_Coordinate: -14.3274
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: bathymetry
      Theme_Keyword: echosounding
      Theme_Keyword: grid
      Theme_Keyword: multibeam
      Theme_Keyword: seafloor
      Theme_Keyword: base layer
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: SW Pacific
      Place_Keyword: Samoa
      Place_Keyword: American Samoa
      Place_Keyword: Tutuila
      Place_Keyword: island
      Place_Keyword: Pacific islands GIS
  Access_Constraints:
    none
  Use_Constraints:
    NOT for navigational purposes!!!
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: Fagatele Bay National Marine Sanctuary
        Contact_Person: Dawn Wright
      Contact_Position: collaborator
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 104 Wilkinson Hall, Oregon State University Geosciences
        City: Corvallis
        State_or_Province: OR
        Postal_Code: 97331-5506
        Country: USA
      Contact_Voice_Telephone: 541-737-1229
      Contact_Facsimile_Telephone: 541-737-1200
      Contact_Electronic_Mail_Address: dawn@dusk.geo.orst.edu
      Hours_of_Service: noon to 5 (email is best)
  Native_Data_Set_Environment:
    ESRI Grid format
    c:\workspace\pago_shift
 
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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Depth soundings have an accuracy of ~24 m (i.e., points
      fall within a circle of radius 24 m). Soundings
      have been "cleaned" with a 2nd standard deviation filter to
      flag outliers
      (i.e., points beyond the 2nd standard deviation in Simrad
      bin stat post processing
      were flagged or removed).
      Tidal corrections: NOAA, verified, downloaded tide data,
      preliminary pressure
      water level data (N1) data are in meters above MLLW datum
      from station 1770000, Pago Pago, AS.
      Data have not yet been corrected with differential GPS.
  Logical_Consistency_Report:
    These data are believed to be logically consistent, though
    no tests were
    performed.
  Completeness_Report:
    95% coverage of the harbor
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        24 m
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Tidal corrections: NOAA, verified, downloaded tide data,
        preliminary pressure
        water level data (N1) data are in meters above MLLW datum
        from station 1770000, Pago Pago, AS.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Brian Donahue, Univ. of S. Florida
          Originator: Dawn Wright Oregon St.
          Publication_Date: 20010805
          Title: Simrad EM-3000 Multibeam Bathymetry Grid
          Edition: 1
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: Tutuila, American Samoa
            Publisher: Fagatele Bay National Marine Sanctuary Office
          Other_Citation_Details:
          Online_Linkage: HTTP://dusk.geo.orst.edu/djl/samoa
          Larger_Work_Citation:
            Citation_Information:
              Originator: NOAA National Ocean Service (NOS) Special Projects
              Publication_Date: same as above
              Title: same as above
              Publication_Information:
                Publication_Place: same as above
                Publisher: same as above
              Online_Linkage: same as above
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Brian Donahue, Univ. of S. Florida
          Originator: Dawn Wright Oregon St.
          Publication_Date: 20010805
          Title: Simrad EM-3000 Multibeam Bathymetry Grid
          Edition: 1
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: Tutuila, American Samoa
            Publisher: Fagatele Bay National Marine Sanctuary Office
          Other_Citation_Details:
          Online_Linkage: HTTP://dusk.geo.orst.edu/djl/samoa
          Larger_Work_Citation:
            Citation_Information:
              Originator: NOAA National Ocean Service (NOS) Special Projects
              Publication_Date: same as above
              Title: same as above
              Publication_Information:
                Publication_Place: same as above
                Publisher: same as above
              Online_Linkage: same as above
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Brian Donahue, Univ. of S. Florida
          Originator: Dawn Wright Oregon St.
          Publication_Date: 20010805
          Title: Simrad EM-3000 Multibeam Bathymetry Grid
          Edition: 1
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: Tutuila, American Samoa
            Publisher: Fagatele Bay National Marine Sanctuary Office
          Other_Citation_Details:
          Online_Linkage: HTTP://dusk.geo.orst.edu/djl/samoa
          Larger_Work_Citation:
            Citation_Information:
              Originator: NOAA National Ocean Service (NOS) Special Projects
              Publication_Date: same as above
              Title: same as above
              Publication_Information:
                Publication_Place: same as above
                Publisher: same as above
              Online_Linkage: same as above
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Brian Donahue, Univ. of S. Florida
          Originator: Dawn Wright Oregon St.
          Publication_Date: 20010805
          Title: Simrad EM-3000 Multibeam Bathymetry Grid
          Edition: 1
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: Tutuila, American Samoa
            Publisher: Fagatele Bay National Marine Sanctuary Office
          Other_Citation_Details:
          Online_Linkage: HTTP://dusk.geo.orst.edu/djl/samoa
          Larger_Work_Citation:
            Citation_Information:
              Originator: NOAA National Ocean Service (NOS) Special Projects
              Publication_Date: same as above
              Title: same as above
              Publication_Information:
                Publication_Place: same as above
                Publisher: same as above
              Online_Linkage: same as above
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Brian Donahue, Univ. of S. Florida
          Originator: Dawn Wright Oregon St.
          Publication_Date: 20010805
          Title: Simrad EM-3000 Multibeam Bathymetry Grid
          Edition: 1
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: Tutuila, American Samoa
            Publisher: Fagatele Bay National Marine Sanctuary Office
          Other_Citation_Details:
          Online_Linkage: HTTP://dusk.geo.orst.edu/djl/samoa
          Larger_Work_Citation:
            Citation_Information:
              Originator: NOAA National Ocean Service (NOS) Special Projects
              Publication_Date: same as above
              Title: same as above
              Publication_Information:
                Publication_Place: same as above
                Publisher: same as above
              Online_Linkage: same as above
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Brian Donahue, Univ. of S. Florida
          Originator: Dawn Wright Oregon St.
          Publication_Date: 20010805
          Title: Simrad EM-3000 Multibeam Bathymetry Grid, Pago Pago Harbor,
            American Samoa
          Edition: 1
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: Tutuila, American Samoa
            Publisher: Fagatele Bay National Marine Sanctuary Office
          Other_Citation_Details:
          Online_Linkage: HTTP://dusk.geo.orst.edu/djl/samoa
          Larger_Work_Citation:
            Citation_Information:
              Originator: NOAA National Ocean Service (NOS) Special Projects
              Publication_Date: same as above
              Title: same as above
              Publication_Information:
                Publication_Place: same as above
                Publisher: same as above
              Online_Linkage: same as above
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Brian Donahue, Univ. of S. Florida
          Originator: Dawn Wright Oregon St.
          Publication_Date: 20010805
          Title: Simrad EM-3000 Multibeam Bathymetry Grid (shifted), Pago
            Pago Harbor, American Samoa
          Edition: 1
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: Tutuila, American Samoa
            Publisher: Fagatele Bay National Marine Sanctuary Office
          Other_Citation_Details:
          Online_Linkage: HTTP://dusk.geo.orst.edu/djl/samoa
          Larger_Work_Citation:
            Citation_Information:
              Originator: NOAA National Ocean Service (NOS) Special Projects
              Publication_Date: same as above
              Title: same as above
              Publication_Information:
                Publication_Place: same as above
                Publisher: same as above
              Online_Linkage: same as above
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
        Initial parameters for collection and processing of
        multibeam data collection
        and processing:
        pitch: 3.46
        roll: -0.8
        time: 0.2
        Basic GIS processing steps:
        * stripped headers off of Simrad xyz files provided by
        Brian Unix: sed -e '1,15d' )
        * gridded in Unix MbSystem (e.g. for a 5-m grid, mbgrid
        -Idatalist -E5/5/meters -R-170.698/-170.666/-14.283/-14.269
        -Opago5m -N -A1 -V )


mbgrid -Idatalist -E1/1/meters -R-170.6763/-170.6495/-14.3274/-14.307 
-Otaema1m -N -A1 -C10 -V


MbGrid Parameters


        * then convert to ArcInfo grid with ArcGMT *


      Source_Used_Citation_Abbreviation: 
      Process_Date: 20010730
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: Fagatele Bay National Marine Sanctuary
            Contact_Person: Dawn Wright
          Contact_Position: collaborator
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 104 Wilkinson Hall, Oregon State University Geosciences
            City: Corvallis
            State_or_Province: OR
            Postal_Code: 97331-5506
            Country: USA
          Contact_Voice_Telephone: 541-737-1229
          Contact_Facsimile_Telephone: 541-737-1200
          Contact_Electronic_Mail_Address: dawn@dusk.geo.orst.edu
          Hours_of_Service: noon to 5 (email is best)

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Raster
  Raster_Object_Information:
    Raster_Object_Type: Grid Cell
    Row_Count: 2258
    Column_Count: 2892

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SPATIAL_REFERENCE_INFORMATION


  Horizontal_Coordinate_System_Definition:
    Geographic:
      Latitude_Resolution: 1 m
      Longitude_Resolution: 1 m
      Geographic_Coordinate_Units: Decimal Degrees
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: Geodetic Reference System 80
      Semi-major_Axis: 6,378,137
      Denominator_of_Flattening_Ratio: 298.257

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: tutuila_geo.vat
      Entity_Type_Definition: GRID Value Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Value
      Attribute_Definition: Pixel value
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Count
      Attribute_Definition: Number of pixel with same value
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: Fagatele Bay National Marine Sanctuary
        Contact_Person: Dawn Wright
      Contact_Position: collaborator
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 104 Wilkinson Hall, Oregon State University Geosciences
        City: Corvallis
        State_or_Province: OR
        Postal_Code: 97331-5506
        Country: USA
      Contact_Voice_Telephone: 541-737-1229
      Contact_Facsimile_Telephone: 541-737-1200
      Contact_Electronic_Mail_Address: dawn@dusk.geo.orst.edu
      Hours_of_Service: noon to 5 (email is best)
  Resource_Description:
  Distribution_Liability:
    NOT for navigational purposes!!!
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name:ArcInfo Interchange Export (*.e00) files
      Digital_Transfer_Option:
        Offline_Option:
          Offline_Media: none
          Recording_Format: none
          Compatibility_Information:
            ArcInfo, ArcView, ArcExplorer
    Fees: none
    Ordering_Instructions:
      http: HTTP://dusk.geo.orst.edu/djl/samoa

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010805
  Metadata_Review_Date: 20010805
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: Fagatele Bay National Marine Sanctuary
        Contact_Person: Dawn Wright
      Contact_Position: collaborator
      Contact_Address:
        Address_Type: Mailing and physical address
        Address: 104 Wilkinson Hall, Oregon State University Geosciences
        City: Corvallis
        State_or_Province: OR
        Postal_Code: 97331-5506
        Country: USA
      Contact_Voice_Telephone: 541-737-1229
      Contact_Facsimile_Telephone: 541-737-1200
      Contact_Electronic_Mail_Address: dawn@dusk.geo.orst.edu
      Hours_of_Service: noon to 5 (email is best)
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
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